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Finding the Fourth Proportional to 54,999.30, 82,499.25 and 19,938.04

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Solution

The fourth proportional to 54,999.30, 82,499.25 and 19,938.04 is: 29,907.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,999.30 : 82,499.25 = 19,938.04 : x
  2. Step 2: Convert to fraction form
    54,999.30/82,499.25 = 19,938.04/x
  3. Step 3: Cross multiply
    54,999.30x = 82,499.25 × 19,938.04
  4. Step 4: Simplify right side
    54,999.30x = 1,644,873,346.47
  5. Step 5: Solve for x
    x = 1,644,873,346.47/54,999.30
  6. Step 6: Final answer
    x = 29,907.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.